William j



(NoModei.)

W. J. HEARN.

PUMP.

No. 376,382. Patented Jan. 10, 1888.l

2 mm -M Ww PJJ Y any of said parts.

' UNITED STATES PATENT OFFICE.

WILLIAM J. HEAEN, or NEW YORK, n.y Y.

PUMP.

SPECIFICATION forming part of Letters Patent N o. 376,382, datedanuary10. 1888.

Application filed April 21, 1887. Serial No. 235,656. (No model.)

To all whom it may concern:

Beit known that I, WILLIAM J. HEARN, a citizen of the United States,residing at New York, inthe county and State of New York, have inventednew and useful Improvements in Pumps, of which the following is aspecilication. V

This invention4 relates to an .improvement in pumps, as set forth in thefollowing specication and claim, and illustrated in the accompanyingdrawing, which represents a vertical central section of a. pump.

In the drawing, the lette'l` A indicates a barrel, in which works apiston, B. The pistonrod C communicates with an actuator, such as alever, D. The descent of the piston B allows water or liquid to passthrough the upwardly-opening valve `X of the piston, and the ascent ofsuch piston closes the valve X and forces the liquid which has collectedabove the piston B out through the discharge-opening E. The barrel Acommunicates, by means of a pipe, F, with a vessel or chamber, G. y Inthe chamber G rises a tube or pipe, H, for a certain distance, and saidtube H communicates with a lower chamber, I. lower chamber, I, a pipe ortube, K, leads to the fluid which is to be pumped. An upwardly-openingvalve, L, sits over'the upper mouth of the pipe K.

In the pipe H slides apiston, M, having an upwardly-opening valve, N.The piston M is connected to a rod, O. To the rod O are secured chambersor cups T R P, which are open at their lower portions. The upperportions of the cups T B P are closed by upwardlyopening valves U S. Theupper portion of the cup P is closed by a downwardly-opening valve, Q.The valve Q is made in the form of a spring-valve or equivalent device,so that the valveQiu its normal position is closed.

A piston, W, is secured to the rod O. Said piston W slides in the lowerchamber, I, and is provided with an upwardly-opening valve, Y. A spring,V, secured to the piston W and to a iixed part of the device, holdssaidpiston, with the rod O and the various parts secured to said rod, inposition, while leaving said parts free to yield in one direction oranother on any strain beingbrought to bear on When the piston B israised, the water at the top of the piston B is forced out ofthe spoutE. The rise of the piston B causes water or fluid to pass out of thechamber G into the pipe F and into the barrel A to fill the vacuumcaused in the lower partl of the barrel A by the rise of the piston B.As fluid passes out of the chamber G, the vacuum caused in said chamberG will be filled by fluid passing through the pipe K and the valves L,Y, N, U, and S into the chamber G. Any water or fluid that should spoutthrough the valve S will' strike against the cup P, and will be thrownby said cup to the lower part of the chamber G. Any fluid or pressurethat should exist at the upper part of the chamber G is free to pass tothe lower part of said chamber through the downwardlyopening valve Q,and also past the sides of the` cup P, which are some distance from thesides of the chamber G.

will not strike any iixed part of the machine;

also, the yielding of the rod O back and forth as the'water or fluidpresses upon the parts W, M, T, R, and P will cause an oscillating orpumping action of said parts with their valves, which pumping actionassists the pumping action of the piston B.

If desired, the cup P and one of the cups T R may be omitted; but`Iprefer to have said cups, as said cup P prevents water which spoutsthrough the valves U S from striking against the chamber G and as thecups T B supplement or assist one another in securing motion of the rodO.

Vhat I claim as new, and desire to secure by Letters Patent, is

The combination, with a suction-tube, K, a barrel, A, and piston B, andsuitable valves for said parts, of an upper chamber, G, communicatingwith the barrel A, a lower chamber, I, a tube, H, extending from thelower chamber into the upper chamber, a valved piston, M, in said tubeH, and a spring-pressed rod, O, secured to said piston M, said rod beingprovided with a valved piston, W, and,

with a cup, substantially as sety forth.

In testimony whereof I have hereunto set my hand and seal in thepresence of two subscrib ing witnesses.

WM. J. HEARN. [Ls] roc

